Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
truong cao » truong dai
thong cong » trong cong, tong cong, thong thong
dang thanh » dong thanh, dang hanh, hoang thanh
thanh chau » thanh cha, thanh cham, thanh chu
trung cao » trung cap, trung co, trung ca
cong dang » cong dong, cong dan, cong dung
ho chieu » hoc thieu, doi chieu, mot chieu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (ho chieu)) sach - thanh ((trung cao) OR (truong cao)) thong cong dang thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - thanh ((trung cao) OR (truong cao)) thong cong dang thanh chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (ho chieu)) sach - thanh ((trung cao) OR (truong cao)) thong cong dang thanh chau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) sach - thanh ((trung cao) OR (truong cao)) thong cong dang thanh chau*.